Lines Matching +full:partition +full:- +full:file +full:- +full:system

33 APPENDIX B. RULES FOR DEFAULTING SYSTEM DEVICES
39 not fully specify the location of the root file system,
40 paging area(s), device for system dumps, and device for
43 of rules are used in defaulting system devices.
46 specification must indicate a ``generic'' system is to be built.
51 If the root device does not include a partition specification,
52 it defaults to the ``a'' partition.
55 partition of the root device.
58 first swap partition is selected.
60 If no device is chosen for system dumps, the first swap
61 partition is selected (see below to find out where dumps are
62 placed within the partition).
69 Type	Partition
80 When multiple swap partitions are specified, the system treats the
83 system at the time a
85 system call is made.  This is normally done at boot time with
88 from the /etc/rc file.
90 System dumps
92 System dumps are automatically taken after a system crash,
97 back of the partition.  The dump is placed in the back of the
98 partition because the primary swap and dump device are commonly
99 the same device and this allows the system to be rebooted without
101 occurred, the system variable \fIdumpsize\fP 
102 is set to a non-zero value indicating the size (in bytes) of
104 program then copies the information from the dump partition to
105 a file in a ``crash'' directory and also makes a copy of the
106 system which was running at the time of the crash (usually
107 ``/kernel'').  The offset to the system dump is defined in the
108 system variable \fIdumplo\fP (a sector offset from
109 the front of the dump partition). The 
114 corresponding location in the dump area of the dump partition.
118 of the dump partition.  This value is then used in copying the
119 system dump.  Refer to 
125 \fIdumpdev-size\fP \- \fImemsize\fP
127 where \fIdumpdev-size\fP is the size of the disk partition
128 where system dumps are to be placed, and
130 If the disk partition is not large enough to hold a full
131 dump, \fIdumplo\fP is set to 0 (the start of the partition).